2. (6 points) Write a MATLAB program (a2q2.m) that begins by defining vectors 1 15 15 15 15 15 15 x= 55, 52, 49, 46, 43, 40, 37 and y=15,- Use shorthand notation. Do not output the values in x and y. Then, use the vectors in element-by-element calculations to construct and ouput a vector z as follows: Z=- xy + yx (x - y) Finally, compute and output the mean of the values in z